Shading in a photovoltaic system, including utility poles, plants, bird droppings, dust, fronts and spacing of modules, how much difference can a photovoltaic system produce? How much does it affect investment returns?
It’s hard to avoid this problem with a residential system because it doesn’t seem to take power generation seriously. But they are wrong.
In addition, shading in photovoltaic systems can create spots. If things go on like this, it will accelerate the aging and life of the module.
How much does shadow occlusion affect ROI?
Taking the 15kW system as an example, it is calculated that 20% power loss will affect the annual return on investment by about 3%.
How to solve this problem?
Shadows are mainly due to bird droppings, dust, and trees. Start by choosing the best location to install your PV modules, avoid shading, or opt for a solar panel optimizer. If unavoidable, choose an appropriate module placement method. Reduces the effect of shadows on occlusion. During maintenance, pay attention to cleaning and clean things in time.